Home / 156,312.30-215,696.41-88,334.47

Finding the Fourth Proportional to 156,312.30, 215,696.41 and 88,334.47

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Solution

The fourth proportional to 156,312.30, 215,696.41 and 88,334.47 is: 121,893.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,312.30 : 215,696.41 = 88,334.47 : x
  2. Step 2: Convert to fraction form
    156,312.30/215,696.41 = 88,334.47/x
  3. Step 3: Cross multiply
    156,312.30x = 215,696.41 × 88,334.47
  4. Step 4: Simplify right side
    156,312.30x = 19,053,428,058.25
  5. Step 5: Solve for x
    x = 19,053,428,058.25/156,312.30
  6. Step 6: Final answer
    x = 121,893.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.